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I downloaded the torrent. You need to have access to all kinds of differen weights soI think it's only really possible in the gym or when you have a lot of weights. But why don't you just download it for free?

Insanity requires no weights.

And you don't download it for free because that's stealing.

Back to OP- I have Insanity and it's the hardest workout I've ever done. I also have P90X, and frankly Insanity makes P90X look easy. It's very hard on the knees though. I had to stop 2/3 of the way through the program because my knees were shot. It took months for me to recover. I agree by Primal standards it's probably chronic cardio. But I don't see why you couldn't do just half of a DVD one day, half the next and use the basis of the program to improve your fitness.

Back to OP- I have Insanity and it's the hardest workout I've ever done. I also have P90X, and frankly Insanity makes P90X look easy. It's very hard on the knees though. I had to stop 2/3 of the way through the program because my knees were shot. It took months for me to recover. I agree by Primal standards it's probably chronic cardio. But I don't see why you couldn't do just half of a DVD one day, half the next and use the basis of the program to improve your fitness.

Any program that causes injuries like that is NOT proper exercise. Period. I simply can't believe all of the nonsense out there. The fitness industry is a joke. If any protocol wears people out and leads to injury, its nothing that anyone should be doing.

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Any program that causes injuries like that is NOT proper exercise. Period. I simply can't believe all of the nonsense out there. The fitness industry is a joke. If any protocol wears people out and leads to injury, its nothing that anyone should be doing.

I disagree. I'm the one that got injured and the bottom line is I attempted an extreme program while I was significantly overweight. I'd say it's user error. I only put the warning about knees on there to prevent other people from experiencing the same issue. Running or any other higher impact exercise would have done the same thing to me. Personally I think Insanity is a good program. I just did too much, too soon, with too much extra weight on my knees.

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I disagree. I'm the one that got injured and the bottom line is I attempted an extreme program while I was significantly overweight. I'd say it's user error. I only put the warning about knees on there to prevent other people from experiencing the same issue. Running or any other higher impact exercise would have done the same thing to me. Personally I think Insanity is a good program. I just did too much, too soon, with too much extra weight on my knees.

Yes running or any other high impact exercise would have injured you as well as the countless others it injures on a daily basis. That is the point. High impact activity is not beneficial exercise over the long haul. Any activity that carries a high risk of wear and tear, injuries etc. is NOT proper exercise. Injuries add up. That wear and tear comes back to haunt later in life. Once mobility is diminished, quality of life goes down as does one's actual lifespan. This is no small manner. The way in which exercise is viewed by almost everyone is wrong. Insanity is a great name for this protocol.

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Yes running or any other high impact exercise would have injured you as well as the countless others it injures on a daily basis. That is the point. High impact activity is not beneficial exercise over the long haul. Any activity that carries a high risk of wear and tear, injuries etc. is NOT proper exercise. Injuries add up. That wear and tear comes back to haunt later in life. Once mobility is diminished, quality of life goes down as does one's actual lifespan. This is no small manner. The way in which exercise is viewed by almost everyone is wrong. Insanity is a great name for this protocol.

So do you also disagree with Mark's suggestion for sprinting once a week, then? I'm genuinely curious. I think high impact is fine, if you have the joints for it, personally. I do believe you can over-exercise by doing it too long, but I don't see any reason to actually avoid higher impact exercise if your joints are in good shape and your weight isn't excessive. Surely Grok ran occasionally.

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I workout mid-morning and there are several older gentlemen there at that time. Everyone of them regrets all of the crazy "fitness" stuff they did 20-30 years ago. They deal with joint pain, tendinitis and arthritis everyday of their lives. It makes you think for sure.

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So do you also disagree with Mark's suggestion for sprinting once a week, then? I'm genuinely curious. I think high impact is fine, if you have the joints for it, personally. I do believe you can over-exercise by doing it too long, but I don't see any reason to actually avoid higher impact exercise if your joints are in good shape and your weight isn't excessive. Surely Grok ran occasionally.

I think that interval training is very effective. There are lots of ways to do it and not all are high impact. I've done flat ground sprints and have most definitely had minor tears and the like. I've found steep hill sprints to be even more effective and much less high impact as you can't run fast at all as gravity prevent it. You push as hard as you can but in reality your legs are getting more of a weight training workout leg wise.

It all come down to fitness but not at the cost of mobility, quality of life and longevity.